Home / 553,247.22-763,553.93-311,577.04

Finding the Fourth Proportional to 553,247.22, 763,553.93 and 311,577.04

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Solution

The fourth proportional to 553,247.22, 763,553.93 and 311,577.04 is: 430,017.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,247.22 : 763,553.93 = 311,577.04 : x
  2. Step 2: Convert to fraction form
    553,247.22/763,553.93 = 311,577.04/x
  3. Step 3: Cross multiply
    553,247.22x = 763,553.93 × 311,577.04
  4. Step 4: Simplify right side
    553,247.22x = 237,905,872,786.32
  5. Step 5: Solve for x
    x = 237,905,872,786.32/553,247.22
  6. Step 6: Final answer
    x = 430,017.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.